Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Nonopapa, Niihau Island, HI.
Next low tide (tomorrow) : 3:09 am (0.0 ft)
Next high tide : in 3h 56m at 7:42 pm (1.5 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Aug 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:540.51:571.86:160.19:320.36:137:20Waxing Gibbous1Tue
2Wed1:460.62:351.87:070.09:560.26:147:19Waxing Gibbous2Wed
3Thu2:280.63:101.87:520.010:180.26:147:19Full Moon3Thu
4Fri3:070.73:421.78:340.110:400.26:157:18Full Moon4Fri
5Sat3:440.84:121.79:140.111:020.26:157:18Full Moon5Sat
6Sun4:210.94:391.69:530.211:260.26:157:17Full Moon6Sun
7Mon5:000.95:041.510:320.311:500.26:167:16Waning Gibbous7Mon
8Tue5:401.05:281.311:140.46:167:16Waning Gibbous8Tue
9Wed6:241.05:501.212:150.212:020.56:167:15Waning Gibbous9Wed
10Thu7:151.16:121.012:400.21:030.66:177:14Waning Gibbous10Thu
11Fri8:181.16:330.91:090.22:320.76:177:14Third Quarter11Fri
12Sat9:321.26:550.71:430.24:410.76:187:13Third Quarter12Sat
13Sun10:451.32:300.26:187:12Third Quarter13Sun
14Mon11:461.510:540.53:320.27:510.56:187:12Third Quarter14Mon
15Tue12:371.64:400.18:170.46:197:11Waning Crescent15Tue
16Wed12:160.51:221.85:440.18:450.36:197:10Waning Crescent16Wed
17Thu1:140.62:031.96:420.09:130.26:197:09Waning Crescent17Thu
18Fri2:040.72:431.97:360.09:430.16:207:09New Moon18Fri
19Sat2:520.93:221.98:290.010:120.16:207:08New Moon19Sat
20Sun3:401.04:001.89:220.010:420.06:207:07New Moon20Sun
21Mon4:291.24:371.610:170.111:130.06:217:06New Moon21Mon
22Tue5:201.35:141.411:150.311:440.06:217:05Waxing Crescent22Tue
23Wed6:141.45:501.212:210.46:217:04Waxing Crescent23Wed
24Thu7:151.56:281.012:180.01:390.56:217:04Waxing Crescent24Thu
25Fri8:231.57:130.712:540.13:220.66:227:03First Quarter25Fri
26Sat9:391.58:350.61:380.15:450.56:227:02First Quarter26Sat
27Sun10:531.610:390.52:380.27:180.46:227:01First Quarter27Sun
28Mon11:571.63:540.27:570.46:237:00First Quarter28Mon
29Tue12:060.612:481.65:110.28:240.36:236:59Waxing Gibbous29Tue
30Wed1:010.71:311.76:140.28:460.36:236:58Waxing Gibbous30Wed
31Thu1:420.72:081.67:050.29:050.36:246:57Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1610367)

Common Questions About Nonopapa, Niihau Island, HI Tides

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What time does the tide turn (slack tide) in Nonopapa, Niihau Island, HI today?

Slack tide in Nonopapa, Niihau Island, HI is approximately 11:25 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Nonopapa, Niihau Island, HI?

Nonopapa, Niihau Island, HI is currently in a transitional phase. Tonight's moon is 29% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Nonopapa, Niihau Island, HI tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Nonopapa, Niihau Island, HI?

Tide predictions for Nonopapa, Niihau Island, HI come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Nonopapa, Niihau Island, HI?

Tide data for Nonopapa, Niihau Island, HI is sourced from NOAA Station #1610367. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=1610367.

What is the moon phase in Nonopapa, Niihau Island, HI tonight?

Tonight the moon over Nonopapa, Niihau Island, HI is Waxing Crescent (29% illuminated). This places Nonopapa, Niihau Island, HI in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA